WP 31S RCL function

[Dieter]

(10-19-2015 04:12 PM)mikemo Wrote:  I press "RCL" and it waits for input from me. I assume at this point that the keyboard is in "transient alpha mode" (from the manual).

?!? Why should it be in transient alpha mode?

(10-19-2015 04:12 PM)mikemo Wrote:  I press the "3" key

You press "RCL" and "3", so you obviously want to recall register 3. ;-)
And that's what's displayed if you hold down the key: "RCL 03".
Why should the 31s do something different and execute a RCL Z instead?

If you really want to do so you have to make that clear:

(10-19-2015 04:12 PM)mikemo Wrote:  ...to recall the Z register. Instead of the x register containing the number 3, it has a zero.

Sure – register 3 obviously was empty, so you get a zero.

If you want to access the stack registers (i.e. get a "Z" instead of the "3") simply press ENTER: RCL ENTER displays "RCL s" (= "stack"), and pressing the "3" key (or "Z") now yields a RCL Z.

Dieter